Question

Tolong dijawab ya pakai caranya nomor 9 dan tolong jangan ngasal

Answer 1

Un/2n-1. ---> tiga suku pertama U1,U2,U3 = 1,2,3

u1= n/2n-1
= 1/2.1-1
= 1/2-1
U1= 1

U2= n/2n-1
= 2/2.2-1
= 2/4-1
= 2/3

U3= n/2n-1
= 3/2.3-1
= 3/6-1
= 3/5
hd 3 suku pertama = 1, 2/3, 3/5